Paul the fencer.
Paul was a new member of the adventurers guild, and joined around the same time as Charlotte, John and Aura. He was a capable fencer, and joined Aura on many of her adventures.
Paul specialized in fighting heavily armored foes, and John makes note of his skills with a rapier.
Aura noted that Paul has a keen eye for his team mates abilities.
Later, Paul turns into Paulina due to Lilim's curse.